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Finding the Fourth Proportional to 141.73, 195.58 and 82.69

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Solution

The fourth proportional to 141.73, 195.58 and 82.69 is: 114.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.73 : 195.58 = 82.69 : x
  2. Step 2: Convert to fraction form
    141.73/195.58 = 82.69/x
  3. Step 3: Cross multiply
    141.73x = 195.58 × 82.69
  4. Step 4: Simplify right side
    141.73x = 16,172.51
  5. Step 5: Solve for x
    x = 16,172.51/141.73
  6. Step 6: Final answer
    x = 114.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.